HSS Step Drill Bit Set (3pcs)

This high speed steel (HSS) step drill bit set provides fast and smooth drills and widely used on materials like steel, wood, thin iron, aluminum alloy, etc. These drill bits ranges from 4mm to 32mm.

Material : High speed steel

Includes:
1 x 4-12mm step bit
1 x 4-32 mm step bit
1 x 4-20mm step bit